CN111849041A - Low-odor low-compression-deformation rubber sealing material and preparation method thereof - Google Patents
Low-odor low-compression-deformation rubber sealing material and preparation method thereof Download PDFInfo
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- CN111849041A CN111849041A CN202010569409.0A CN202010569409A CN111849041A CN 111849041 A CN111849041 A CN 111849041A CN 202010569409 A CN202010569409 A CN 202010569409A CN 111849041 A CN111849041 A CN 111849041A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention provides a low-odor low-compression-deformation rubber sealing material and a preparation method thereof, and relates to the technical field of rubber manufacturing. A low-odor low-compression-deformation rubber sealing material is prepared from the following raw materials in parts by weight: 50-70 parts of natural rubber, 30-50 parts of polyurethane rubber, 10-20 parts of thermoplastic polyurethane elastomer, 1-5 parts of rubber deodorant, 70-100 parts of carbon black, 1-5 parts of lignin rubber auxiliary agent, 3-5 parts of accelerator, 5-10 parts of anti-aging agent and 2-6 parts of vulcanizing agent. Through being provided with carbon black, lignin rubber auxiliary agent, thermoplastic polyurethane elastomer etc, increase the intensity of rubber, make its deflection lighter, increase the wearability of rubber simultaneously, make the life of rubber materials increase, sealed effect is better moreover, is provided with the rubber deodorant to and use natural rubber, make the rubber that produces, the smell can be got rid of, in the use, can reduce giving off of smell, the reduction is to the injury of human body.
Description
Technical Field
The invention relates to the technical field of rubber manufacturing, in particular to a low-odor low-compression-deformation rubber sealing material and a preparation method thereof.
Background
The rubber is a high-elasticity polymer material with reversible deformation, is rich in elasticity at room temperature, can generate large deformation under the action of small external force, and can recover the original shape after the external force is removed. The rubber belongs to a completely amorphous polymer, and has low glass transition temperature and large molecular weight which is more than hundreds of thousands. The rubber is divided into natural rubber and synthetic rubber. The natural rubber is prepared by extracting colloid from plants such as rubber tree and rubber grass and processing; synthetic rubbers are obtained by polymerization of various monomers. Rubber products are widely used in industry or in various aspects of life.
The existing rubber sealing material is made of rubber, the deformation of a rubber product is large, the sealing effect is poor for some sealing devices, leakage or seepage is generated, moreover, the rubber product can generate large smell, the smell is sharp, and certain harm is caused to human bodies.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a low-odor low-compression-deformation rubber sealing material and a preparation method thereof, and solves the problems of large odor and large compression deformation of rubber materials.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a low-odor low-compression-deformation rubber sealing material is prepared from the following raw materials in parts by weight: 50-70 parts of natural rubber, 30-50 parts of polyurethane rubber, 10-20 parts of thermoplastic polyurethane elastomer, 1-5 parts of rubber deodorant, 70-100 parts of carbon black, 1-5 parts of lignin rubber auxiliary agent, 3-5 parts of accelerator, 5-10 parts of anti-aging agent and 2-6 parts of vulcanizing agent.
Preferably, the thermoplastic polyurethane elastomer is prepared by reacting diphenylmethane diisocyanate with macromolecular polyol and low-molecular polyol.
Preferably, the vulcanizing agent is one or more of sulfur, sulfur monochloride and polysulfide polymer.
Preferably, the lignin rubber auxiliary agent is a mixed solution of alkali lignin and alkali liquor, and is obtained by filtering through a nanofiltration membrane.
A preparation method of a low-odor low-compression-deformation rubber sealing material comprises the following steps:
s1, mixing natural rubber, polyurethane rubber, a thermoplastic polyurethane elastomer and carbon black in a mixing furnace at 110-120 ℃ for 5-10 minutes to obtain a first mixture;
S2, adding carbon black and an accelerator into the first mixture, and banburying at 130-150 ℃ for 5-10 minutes to obtain a second mixture;
s3, adding a wood rubber auxiliary agent and an anti-aging agent into the second mixture, and banburying at 130-150 ℃ for 2-5 minutes to obtain a third mixture;
s4, adding a rubber deodorant into the third mixture, and carrying out banburying, wherein the banburying temperature is reduced to 110-120 ℃, and the banburying time is 3-7 minutes, so as to obtain a fourth mixture;
and S5, adding a vulcanizing agent into the fourth mixture, carrying out open milling, rubber discharge, sheet discharge and cooling to room temperature to obtain a finished product. .
Preferably, the banburying temperature is 130-150 ℃, the banburying pressure is 9-12 KN, and the banburying speed is 60-90 r/min.
(III) advantageous effects
The invention provides a low-odor low-compression-deformation rubber sealing material and a preparation method thereof. The method has the following beneficial effects:
1. according to the invention, by arranging the carbon black, the lignin rubber auxiliary agent, the thermoplastic polyurethane elastomer and the like, the strength of the rubber is increased, the deformation of the rubber is shallow, the wear resistance of the rubber is increased, the service life of the rubber material is prolonged, and the sealing effect is better.
2. The rubber deodorant is arranged and the natural rubber is used, so that the smell of the manufactured rubber can be removed, and the emission of the smell and the harm to a human body can be reduced in the using process.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the embodiment of the invention provides a low-odor low-compression-deformation rubber sealing material which is prepared from the following raw materials in parts by weight: 50 parts of natural rubber, 50 parts of polyurethane rubber, 20 parts of thermoplastic polyurethane elastomer, 5 parts of rubber deodorant, 100 parts of carbon black, 5 parts of lignin rubber auxiliary agent, 5 parts of accelerator, 10 parts of anti-aging agent and 6 parts of vulcanizing agent.
The thermoplastic polyurethane elastomer is prepared by reacting diphenylmethane diisocyanate with macromolecular polyol and low-molecular polyol, the vulcanizing agent is one or more of sulfur, sulfur monochloride and polysulfide polymer, the lignin rubber auxiliary agent is a mixed solution of alkali lignin and alkali liquor, and the lignin rubber auxiliary agent is obtained by filtering the mixture through a nanofiltration membrane.
A preparation method of a low-odor low-compression-deformation rubber sealing material comprises the following steps:
s1, mixing natural rubber, polyurethane rubber, a thermoplastic polyurethane elastomer and carbon black in a mixing furnace at 110-120 ℃ for 5-10 minutes to obtain a first mixture;
s2, adding carbon black and an accelerator into the first mixture, and banburying at 130-150 ℃ for 5-10 minutes to obtain a second mixture;
s3, adding a wood rubber auxiliary agent and an anti-aging agent into the second mixture, and banburying at 130-150 ℃ for 2-5 minutes to obtain a third mixture;
s4, adding a rubber deodorant into the third mixture, and carrying out banburying, wherein the banburying temperature is reduced to 110-120 ℃, and the banburying time is 3-7 minutes, so as to obtain a fourth mixture;
and S5, adding a vulcanizing agent into the fourth mixture, carrying out open milling, rubber discharge, sheet discharge and cooling to room temperature to obtain a finished product.
The banburying pressure is 9 KN-12 KN, and the banburying rotating speed is 60-90 r/min.
Example two:
the embodiment of the invention provides a low-odor low-compression-deformation rubber sealing material which is prepared from the following raw materials in parts by weight: 60 parts of natural rubber, 40 parts of polyurethane rubber, 12 parts of thermoplastic polyurethane elastomer, 2 parts of rubber deodorant, 70 parts of carbon black, 1 part of lignin rubber auxiliary agent, 3 parts of accelerator, 5 parts of anti-aging agent and 2 parts of vulcanizing agent.
The thermoplastic polyurethane elastomer is prepared by reacting diphenylmethane diisocyanate with macromolecular polyol and low-molecular polyol, the vulcanizing agent is one or more of sulfur, sulfur monochloride and polysulfide polymer, the lignin rubber auxiliary agent is a mixed solution of alkali lignin and alkali liquor, and the lignin rubber auxiliary agent is obtained by filtering the mixture through a nanofiltration membrane.
A preparation method of a low-odor low-compression-deformation rubber sealing material comprises the following steps:
s1, mixing natural rubber, polyurethane rubber, a thermoplastic polyurethane elastomer and carbon black in a mixing furnace at 110-120 ℃ for 5-10 minutes to obtain a first mixture;
s2, adding carbon black and an accelerator into the first mixture, and banburying at 130-150 ℃ for 5-10 minutes to obtain a second mixture;
s3, adding a wood rubber auxiliary agent and an anti-aging agent into the second mixture, and banburying at 130-150 ℃ for 2-5 minutes to obtain a third mixture;
s4, adding a rubber deodorant into the third mixture, and carrying out banburying, wherein the banburying temperature is reduced to 110-120 ℃, and the banburying time is 3-7 minutes, so as to obtain a fourth mixture;
And S5, adding a vulcanizing agent into the fourth mixture, carrying out open milling, rubber discharge, sheet discharge and cooling to room temperature to obtain a finished product.
The banburying pressure is 9 KN-12 KN, and the banburying rotating speed is 60-90 r/min.
Example three:
the embodiment of the invention provides a low-odor low-compression-deformation rubber sealing material which is prepared from the following raw materials in parts by weight: 70 parts of natural rubber, 30 parts of polyurethane rubber, 10 parts of thermoplastic polyurethane elastomer, 1 part of rubber deodorant, 90 parts of carbon black, 4 parts of lignin rubber auxiliary agent, 5 parts of accelerator, 8 parts of anti-aging agent and 5 parts of vulcanizing agent.
The thermoplastic polyurethane elastomer is prepared by reacting diphenylmethane diisocyanate with macromolecular polyol and low-molecular polyol, the vulcanizing agent is one or more of sulfur, sulfur monochloride and polysulfide polymer, the lignin rubber auxiliary agent is a mixed solution of alkali lignin and alkali liquor, and the lignin rubber auxiliary agent is obtained by filtering the mixture through a nanofiltration membrane.
A preparation method of a low-odor low-compression-deformation rubber sealing material comprises the following steps:
s1, mixing natural rubber, polyurethane rubber, a thermoplastic polyurethane elastomer and carbon black in a mixing furnace at 110-120 ℃ for 5-10 minutes to obtain a first mixture;
S2, adding carbon black and an accelerator into the first mixture, and banburying at 130-150 ℃ for 5-10 minutes to obtain a second mixture;
s3, adding a wood rubber auxiliary agent and an anti-aging agent into the second mixture, and banburying at 130-150 ℃ for 2-5 minutes to obtain a third mixture;
s4, adding a rubber deodorant into the third mixture, and carrying out banburying, wherein the banburying temperature is reduced to 110-120 ℃, and the banburying time is 3-7 minutes, so as to obtain a fourth mixture;
and S5, adding a vulcanizing agent into the fourth mixture, carrying out open milling, rubber discharge, sheet discharge and cooling to room temperature to obtain a finished product.
The banburying pressure is 9 KN-12 KN, and the banburying rotating speed is 60-90 r/min.
Example four:
the embodiment of the invention provides a low-odor low-compression-deformation rubber sealing material which is prepared from the following raw materials in parts by weight: 70 parts of natural rubber, 50 parts of polyurethane rubber, 15 parts of thermoplastic polyurethane elastomer, 5 parts of rubber deodorant, 80 parts of carbon black, 3 parts of lignin rubber auxiliary agent, 4 parts of accelerator, 7 parts of anti-aging agent and 4 parts of vulcanizing agent.
The thermoplastic polyurethane elastomer is prepared by reacting diphenylmethane diisocyanate with macromolecular polyol and low-molecular polyol, the vulcanizing agent is one or more of sulfur, sulfur monochloride and polysulfide polymer, the lignin rubber auxiliary agent is a mixed solution of alkali lignin and alkali liquor, and the lignin rubber auxiliary agent is obtained by filtering the mixture through a nanofiltration membrane.
A preparation method of a low-odor low-compression-deformation rubber sealing material comprises the following steps:
s1, mixing natural rubber, polyurethane rubber, a thermoplastic polyurethane elastomer and carbon black in a mixing furnace at 110-120 ℃ for 5-10 minutes to obtain a first mixture;
s2, adding carbon black and an accelerator into the first mixture, and banburying at 130-150 ℃ for 5-10 minutes to obtain a second mixture;
s3, adding a wood rubber auxiliary agent and an anti-aging agent into the second mixture, and banburying at 130-150 ℃ for 2-5 minutes to obtain a third mixture;
s4, adding a rubber deodorant into the third mixture, and carrying out banburying, wherein the banburying temperature is reduced to 110-120 ℃, and the banburying time is 3-7 minutes, so as to obtain a fourth mixture;
and S5, adding a vulcanizing agent into the fourth mixture, carrying out open milling, rubber discharge, sheet discharge and cooling to room temperature to obtain a finished product.
The banburying pressure is 9 KN-12 KN, and the banburying rotating speed is 60-90 r/min.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A low-odor, low-compression-deformation rubber sealing material characterized in that: the health-care food is prepared from the following raw materials in parts by weight: 50-70 parts of natural rubber, 30-50 parts of polyurethane rubber, 10-20 parts of thermoplastic polyurethane elastomer, 1-5 parts of rubber deodorant, 70-100 parts of carbon black, 1-5 parts of lignin rubber auxiliary agent, 3-5 parts of accelerator, 5-10 parts of anti-aging agent and 2-6 parts of vulcanizing agent.
2. A low-odor, low-compression-deformation rubber sealing material as claimed in claim 1, wherein: the thermoplastic polyurethane elastomer is prepared by reacting diphenylmethane diisocyanate, macromolecular polyol and low-molecular polyol.
3. A low-odor, low-compression-deformation rubber sealing material as claimed in claim 1, wherein: the vulcanizing agent is one or more of sulfur, sulfur monochloride and polysulfide polymer.
4. A low-odor, low-compression-deformation rubber sealing material as claimed in claim 1, wherein: the lignin rubber additive is a mixed solution of alkali lignin and alkali liquor, and is obtained after filtration through a nanofiltration membrane.
5. A preparation method of a low-odor low-compression-deformation rubber sealing material is characterized by comprising the following steps of: the method comprises the following steps:
S1, mixing natural rubber, polyurethane rubber, a thermoplastic polyurethane elastomer and carbon black in a mixing furnace at 110-120 ℃ for 5-10 minutes to obtain a first mixture;
s2, adding carbon black and an accelerator into the first mixture, and banburying at 130-150 ℃ for 5-10 minutes to obtain a second mixture;
s3, adding a wood rubber auxiliary agent and an anti-aging agent into the second mixture, and banburying at 130-150 ℃ for 2-5 minutes to obtain a third mixture;
s4, adding a rubber deodorant into the third mixture, and carrying out banburying, wherein the banburying temperature is reduced to 110-120 ℃, and the banburying time is 3-7 minutes, so as to obtain a fourth mixture;
and S5, adding a vulcanizing agent into the fourth mixture, carrying out open milling, rubber discharge, sheet discharge and cooling to room temperature to obtain a finished product.
6. The method for producing a low-odor, low-compression-deformation rubber sealing material as claimed in claim 5, wherein: the banburying pressure is 9 KN-12 KN, and the banburying rotating speed is 60-90 r/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010569409.0A CN111849041A (en) | 2020-06-20 | 2020-06-20 | Low-odor low-compression-deformation rubber sealing material and preparation method thereof |
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| CN202010569409.0A CN111849041A (en) | 2020-06-20 | 2020-06-20 | Low-odor low-compression-deformation rubber sealing material and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5283289A (en) * | 1981-11-05 | 1994-02-01 | Ube Industries, Ltd. | Fiber-reinforced rubber composition and production process thereof and fiber-reinforced elastic product |
| JP2009220314A (en) * | 2008-03-14 | 2009-10-01 | Shachihata Inc | Porous rubber stamping material including open cell and method for manufacturing it |
| JP2017046744A (en) * | 2015-08-31 | 2017-03-09 | 石塚硝子株式会社 | Deodorant plate body |
| CN107254077A (en) * | 2017-05-17 | 2017-10-17 | 浙江吉利控股集团有限公司 | Rubber composition and tire |
| CN107987327A (en) * | 2017-12-25 | 2018-05-04 | 江苏海迅铁路器材集团股份有限公司 | A kind of Rubber shock-absorbing pad |
| CN108148226A (en) * | 2017-12-25 | 2018-06-12 | 江苏海迅铁路器材集团股份有限公司 | A kind of preparation process of Rubber shock-absorbing pad |
| CN109627606A (en) * | 2018-12-24 | 2019-04-16 | 江阴海达橡塑股份有限公司 | A kind of low smell, foam seal material of low compression deformation and preparation method thereof |
-
2020
- 2020-06-20 CN CN202010569409.0A patent/CN111849041A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5283289A (en) * | 1981-11-05 | 1994-02-01 | Ube Industries, Ltd. | Fiber-reinforced rubber composition and production process thereof and fiber-reinforced elastic product |
| JP2009220314A (en) * | 2008-03-14 | 2009-10-01 | Shachihata Inc | Porous rubber stamping material including open cell and method for manufacturing it |
| JP2017046744A (en) * | 2015-08-31 | 2017-03-09 | 石塚硝子株式会社 | Deodorant plate body |
| CN107254077A (en) * | 2017-05-17 | 2017-10-17 | 浙江吉利控股集团有限公司 | Rubber composition and tire |
| CN107987327A (en) * | 2017-12-25 | 2018-05-04 | 江苏海迅铁路器材集团股份有限公司 | A kind of Rubber shock-absorbing pad |
| CN108148226A (en) * | 2017-12-25 | 2018-06-12 | 江苏海迅铁路器材集团股份有限公司 | A kind of preparation process of Rubber shock-absorbing pad |
| CN109627606A (en) * | 2018-12-24 | 2019-04-16 | 江阴海达橡塑股份有限公司 | A kind of low smell, foam seal material of low compression deformation and preparation method thereof |
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